Chapters

A percentage is a ratio where the consequent is 100.

It is denoted by the % symbol and 25% is read as 25 percent which is equal to 25/100 or 0.25.

Example

A motor bike which originally cost 5,000 now costs250 more. What is the percentage of increase?

5% increase in price

Percentage Decrease

When purchasing a vehicle priced at 8,800, the sales clerk awards a discount of 7.5% to the customer. How much will the final cost of the vehicle be? <img src="https://www.superprof.co.uk/resources/wp-content/uploads/2019/06/0_8-15615366382381-8865.gif"     >                   100 − 7.5 = 92.5                   <img src="https://www.superprof.co.uk/resources/wp-content/uploads/2019/06/19-15615366384028-9763.gif"     >                   It can also be calculated as follows:                    <img src="https://www.superprof.co.uk/resources/wp-content/uploads/2019/06/18-15615366386096-2758.gif"     > 							8,800 − 660 = <span class="sol">8,140

Percentage Increase

The price of a computer is $1,200. How much will a customer need to pay in total if the tax is 16%?

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Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.

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